GB9104780D0 - Apparatus and methods for measuring magnetic fields and electric currents - Google Patents
Apparatus and methods for measuring magnetic fields and electric currentsInfo
- Publication number
- GB9104780D0 GB9104780D0 GB919104780A GB9104780A GB9104780D0 GB 9104780 D0 GB9104780 D0 GB 9104780D0 GB 919104780 A GB919104780 A GB 919104780A GB 9104780 A GB9104780 A GB 9104780A GB 9104780 D0 GB9104780 D0 GB 9104780D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- methods
- magnetic fields
- electric currents
- measuring magnetic
- measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/032—Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday or Cotton-Mouton effect
- G01R33/0322—Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday or Cotton-Mouton effect using the Faraday or Voigt effect
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/24—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices
- G01R15/245—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using magneto-optical modulators, e.g. based on the Faraday or Cotton-Mouton effect
- G01R15/246—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using magneto-optical modulators, e.g. based on the Faraday or Cotton-Mouton effect based on the Faraday, i.e. linear magneto-optic, effect
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Measuring Magnetic Variables (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB919104780A GB9104780D0 (en) | 1991-03-07 | 1991-03-07 | Apparatus and methods for measuring magnetic fields and electric currents |
US08/108,631 US5450006A (en) | 1991-03-07 | 1992-03-06 | Apparatus and methods for measuring magnetic fields and electric currents |
JP50603292A JPH06505798A (en) | 1991-03-07 | 1992-03-06 | Apparatus and method for measuring magnetic fields and currents |
GB9204964A GB2253482B (en) | 1991-03-07 | 1992-03-06 | Apparatus and methods for measuring magnetic fields and electric currents |
PCT/GB1992/000403 WO1992015895A1 (en) | 1991-03-07 | 1992-03-06 | Apparatus and methods for measuring magnetic fields and electric currents |
EP92905961A EP0574468A1 (en) | 1991-03-07 | 1992-03-06 | Apparatus and methods for measuring magnetic fields and electric currents |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB919104780A GB9104780D0 (en) | 1991-03-07 | 1991-03-07 | Apparatus and methods for measuring magnetic fields and electric currents |
Publications (1)
Publication Number | Publication Date |
---|---|
GB9104780D0 true GB9104780D0 (en) | 1991-04-17 |
Family
ID=10691129
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB919104780A Pending GB9104780D0 (en) | 1991-03-07 | 1991-03-07 | Apparatus and methods for measuring magnetic fields and electric currents |
GB9204964A Expired - Fee Related GB2253482B (en) | 1991-03-07 | 1992-03-06 | Apparatus and methods for measuring magnetic fields and electric currents |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9204964A Expired - Fee Related GB2253482B (en) | 1991-03-07 | 1992-03-06 | Apparatus and methods for measuring magnetic fields and electric currents |
Country Status (5)
Country | Link |
---|---|
US (1) | US5450006A (en) |
EP (1) | EP0574468A1 (en) |
JP (1) | JPH06505798A (en) |
GB (2) | GB9104780D0 (en) |
WO (1) | WO1992015895A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19506169A1 (en) * | 1995-02-22 | 1996-08-29 | Siemens Ag | Method and arrangement for measuring a magnetic field using the Faraday effect with compensation for changes in intensity |
CA2233880C (en) * | 1995-10-04 | 2005-04-12 | Minnesota Mining And Manufacturing Company | Verdet constant temperature-compensated current sensor |
US5731579A (en) * | 1995-12-11 | 1998-03-24 | Lockheed Idaho Technologies Company | Electro-optical voltage sensor head |
US5939711A (en) * | 1995-12-11 | 1999-08-17 | Lockheed Martin Idaho Technologies Company | Electro-optic voltage sensor head |
US5952818A (en) * | 1996-05-31 | 1999-09-14 | Rensselaer Polytechnic Institute | Electro-optical sensing apparatus and method for characterizing free-space electromagnetic radiation |
CA2255762C (en) * | 1996-05-31 | 2002-06-25 | Rensselaer Polytechnic Institute | Electro-optical and magneto-optical sensing apparatus and method for characterizing free-space electromagnetic radiation |
US5729005A (en) * | 1996-07-12 | 1998-03-17 | Minnesota Mining And Manufacturing Company | Fiber optic current sensor with bend birefringence compensation |
US5982174A (en) * | 1997-07-21 | 1999-11-09 | Wagreich; Richard B. | External cavity fiber Fabry-Perot magnetometer |
CA2357427A1 (en) * | 1999-01-05 | 2000-07-13 | Corning Incorporated | Current measuring method and device |
EP1018650A1 (en) * | 1999-01-05 | 2000-07-12 | Corning Incorporated | Glass fiber, current sensor and method |
US6133721A (en) * | 1999-01-22 | 2000-10-17 | Corning Incorporated | Glass fiber current sensor and method of use therefor |
US6498654B1 (en) * | 1999-06-11 | 2002-12-24 | Harco Laboratories, Inc. | Optical proximity detector |
US6388434B1 (en) | 2000-01-17 | 2002-05-14 | Bechtel Bwxt Idaho, Llc | Electro-optic high voltage sensor |
US7046867B2 (en) * | 2003-02-14 | 2006-05-16 | Abb Research Ltd | Fiberoptic current sensor having a plurality of sensor heads |
US20110052115A1 (en) * | 2009-08-27 | 2011-03-03 | General Electric Company | System and method for temperature control and compensation for fiber optic current sensing systems |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2515811A1 (en) * | 1981-11-03 | 1983-05-06 | Thomson Csf | INTERFEROMETRIC DEVICE FOR MAGNETIC FIELD MEASUREMENT AND ELECTRIC CURRENT SENSOR COMPRISING SUCH A DEVICE |
FR2516232B1 (en) * | 1981-11-09 | 1986-02-21 | Thomson Csf | MICHELSON INTERFEROMETER WITH PHOTOREFRACTIVE MIRROR |
JPS59659A (en) * | 1982-06-28 | 1984-01-05 | Hitachi Ltd | Method and device for magnetooptic current measurement |
FR2535464A1 (en) * | 1982-10-28 | 1984-05-04 | Commissariat Energie Atomique | DEVICE FOR MEASURING TEMPERATURE AND / OR ELECTRICAL INTENSITY WITH FARADAY EFFECT |
US4613811A (en) * | 1984-09-04 | 1986-09-23 | Westinghouse Electric Corp. | Faraday current sensor with fiber optic compensated by temperature, degradation, and linearity |
GB2164145B (en) * | 1984-09-04 | 1989-01-05 | Westinghouse Electric Corp | Temperature compensated current sensor involving faraday effect and fiber optics |
US4803429A (en) * | 1986-09-15 | 1989-02-07 | California Institute Of Technology | Recovering polarization of light of arbitrary polarization propagating through distoring medium by phase conjugation reflection back through said medium |
JPS6426168A (en) * | 1987-07-22 | 1989-01-27 | Matsushita Electric Ind Co Ltd | Optical fiber applied sensor device |
US5218419A (en) * | 1990-03-19 | 1993-06-08 | Eli Lilly And Company | Fiberoptic interferometric sensor |
-
1991
- 1991-03-07 GB GB919104780A patent/GB9104780D0/en active Pending
-
1992
- 1992-03-06 GB GB9204964A patent/GB2253482B/en not_active Expired - Fee Related
- 1992-03-06 EP EP92905961A patent/EP0574468A1/en not_active Ceased
- 1992-03-06 WO PCT/GB1992/000403 patent/WO1992015895A1/en not_active Application Discontinuation
- 1992-03-06 JP JP50603292A patent/JPH06505798A/en active Pending
- 1992-03-06 US US08/108,631 patent/US5450006A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5450006A (en) | 1995-09-12 |
WO1992015895A1 (en) | 1992-09-17 |
JPH06505798A (en) | 1994-06-30 |
EP0574468A1 (en) | 1993-12-22 |
GB9204964D0 (en) | 1992-04-22 |
GB2253482B (en) | 1994-08-10 |
GB2253482A (en) | 1992-09-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
730A | Proceeding under section 30 patents act 1977 | ||
730A | Proceeding under section 30 patents act 1977 |